I do not have the pin out for these encoders, you may have to extract it the hard way, it is almost certain red is + and black is common, I would hook this up to 5vdc supply and rotate the shaft and check the output on the other wires, you may have an A & B channel with the respective complements on the the other two channels, if you have access to a double beam 'scope that would help. It does not look like you have a marker pulse (1pulse/revolution). unscrew the cover and see if you can see any IC numbers as this could tell you if it is line driver or open collector output.
Al
__________________ CNC, Mechatronics Integration and Machine Design.
“Logic will get you from A to B. Imagination will take you everywhere.”
Albert E. |